Jan 6. 'Inconceivable' and staying healthy in 2013

Carolyn and Sean Savage hoped to have another child using embryos left over from the in vitro fertilization procedure that brought them their daughter. Ten days after the embryos were transferred into Carolyn, their doctor called with stunning news. Dateline visits the Savages once again after their lives took yet another unexpected turn.

Also on Sunday, a fresh start for the New Year: Al Roker and his family open up about their plans to stay healthy in 2013. Natalie Morales follows two women who embark on a ten day digital detox. An interview with music icon Usher, plus more.